I Somehow Became the Male Villain of an Ongoing Novel

【Transmigrating into a book as the big villain + cross-dressing as a man + three secret identities + romance + happy ending + System】 When my best friend and I transmigrated into a book together, I knew something was up. Her: “With three secret identities, I’m running around like a headless chicken.” Identity one: The aloof heir of the Northern Kingdom, born to a noble house, with the female lead, my childhood friend, always at my side. “Brother Rong Ci, don’t you think this lantern is pretty?” Identity two: The young master of Wuyuan, warm and approachable, with incredible martial arts skills. Wait, am I really the next leader of the martial world? “Senior Brother, could you take me with you next time you go out to train?” Identity three: The ruthless and vicious master of Chenyuan Pavilion, obsessed with beauty. As the head of the intelligence hub, I have both power and beautiful women at my disposal. I have to admit, I’m pretty tempted. “Hey, you. I’ve got my eye on you!” Her: “What a shame about all those beauties, though. What a shame that Rong Ci is a woman.” Him: “You’re putting on a good act, but I’ve already seen through you.” Her: “Other people who transmigrate into a book become the heroine, or at least a supporting character. I could live with that. But having three secret identities is one thing; the risk of being exposed while cross-dressing as a man is way too high... I’m constantly pushing my luck at death’s door.” System: “No slacking off. Don’t break character. We’re proper villains, after all. You have tasks to complete.” System: “I’m the advanced System everyone adores, the kind of System flowers bloom for. I’m so adorable, so how could anyone not love me?” Her: “I’ve already forgotten who that System was that never knew the answer to anything.”